Voice, Video, and Data Network Convergence (eBook)
330 Seiten
Elsevier Science (Verlag)
978-0-08-047481-6 (ISBN)
*Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry
*Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions
A recent survey of 500 U.S. companies with multiple locations found that 81% are planning to implement IP Telephony on their local area networks (LANs) in 2003, and two-thirds are looking at convergence for their wide area networks (WANs) as well. This includes voice, video and data over hard line and wireless networks.
Today, new standards and technologies are being developed to support convergence and voice over IP (VoIP) and Video over IP and wireless. Because convergence covers the voice and data world, it will be critical to understand all of these environments.
This book provides detailed information on convergence network models, protocol stacks, routing algorithms, gateways and switches required to support these networks.
*Covers the latest standards and those being developed in an ever-evolving field
*Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry
*Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions
Covers the latest standards and those being developed in an ever-evolving field Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions A recent survey of 500 U.S. companies with multiple locations found that 81% are planning to implement IP Telephony on their local area networks (LANs) in 2003, and two-thirds are looking at convergence for their wide area networks (WANs) as well. This includes voice, video and data over hard line and wireless networks. Today, new standards and technologies are being developed to support convergence and voice over IP (VoIP) and Video over IP and wireless. Because convergence covers the voice and data world, it will be critical to understand all of these environments. Voice, Video, and Data Network Convergence provides detailed information on convergence network models, protocol stacks, routing algorithms, gateways and switches required to support these networks. Covers the latest standards and those being developed in an ever-evolving field Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions
Cover 1
Copyright 5
table of contents 8
Preface 12
List of Acronyms 18
1. Differences in Data and Voice Traffic 24
Packet Switching versus Circuit Switching 25
Data Traffic Characteristics 31
Voice Traffic Characteristics 36
The Addition of Data 39
TDM Architectures 40
Convergent Technologies 42
2. Networks Supported - Keeping Existing Infrastructures in Place 44
Basic Telephony 45
Time Division Multiplexing (TDM) 47
Voice over ATM 48
Voice over Frame Relay 63
Voice over Internet Protocol (VoIP) 72
3. The IP-Based Converged Network Elements 86
Managed IP Infrastructure 88
Media Gateways 89
Signaling Gateways 91
Media Controllers 93
Multipoint Control Units 99
Adjunct Processors 99
Terminals 102
4. VoIP Technology 104
Voice Traffic Needs in an IP Network 104
IP Network Protocols to Support Voice 113
Other Elements that Affect VoIP 120
Network Design Recommendations 122
5. Approaches to Implementing VoIP Architectures 126
PBX/KTS-based Architectures 128
Router-Based Arcitectures 131
PC-Based Architecture 133
Converged IP Network Evolution 137
6. VoIP Clients 140
IP Telephones 142
Softphones 153
Thin Clients 156
7. Video on the Converged Network 160
Video Traffic Characteristics 160
Supporting Video in the Converged Network 172
Video and QoS 178
Video and the Wireless Network 183
8. Convergence on Wireless Networks 190
Wireless IP Networks 190
Supporting Voice on Wireless IP 195
Public Wireless 205
Summary 209
9. Convergence Standards and Protocols 212
H.323 213
Session Initiation Protocol (SIP) 222
ISDN Signaling„Q.931, Q.932 229
SS7 over IP 232
Transport„RTP, RTCP 235
10. Management and Control Protocols 244
SNMP for Network Management 245
Using LDAP, COPS and PBNM for Policy-Based Controls 249
MGCP and External Call Control Elements 255
MEGACO/H.248 the New Standard 257
SIGTRAN Suite of Protocols 262
11. Quality of Service (QoS) - Overcoming One of the Biggest Challenges 268
The QoS-based Network Infrastructure 271
Open Standard VoIP Solutions 273
Reasons for Degrading Quality 276
LAN-based Prioritization„IEEE802.1p/Q and IP Precedence 280
Differentiated Services 282
QoS Reservations„RSVP 284
Policy-Based Network for QoS 287
12. Deployment Strategies - Issues and Enterprise Challenges of Deployment 292
Criteria of Selecting Vendors and Products 292
Implementing Deployment Schedules 297
Ensuring Transparency 301
Availability of the Overall Solution 303
Data Network Management 305
Quality of Service (QoS) 306
Security Needs 307
Interworking with PSTN 308
13. Prepare for Convergence-Ready Network - A Solid Approach 310
Hardware Requirements 313
Software Requirements 317
Test Converged Network 320
14. The Next Phase, Applications Using the Converged Network 326
Contact Centers/Customer Relationship Management (CRM) 326
Unified Communications/Messaging 334
Teleworkers 339
SIP, Presence and Intelligent Agents 342
IP-Based Public Services 345
Summary 11
Index 348
| Erscheint lt. Verlag | 11.9.2003 |
|---|---|
| Sprache | englisch |
| Themenwelt | Mathematik / Informatik ► Informatik ► Netzwerke |
| Technik ► Elektrotechnik / Energietechnik | |
| Technik ► Nachrichtentechnik | |
| ISBN-10 | 0-08-047481-0 / 0080474810 |
| ISBN-13 | 978-0-08-047481-6 / 9780080474816 |
| Haben Sie eine Frage zum Produkt? |
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